ASPEN, Colo. — The biggest life-changer for snowboard champion Ayumu Hirano since he won an Olympic gold medal: He became a father. That, as much as triple corks or big airs, has been his focus ...

For Hirano the dad, being really good at what he does has a new meaning now — he’s not just doing it for himself. “I feel like I have to do it right to leave my legacy for this child’s ...